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Finding the Fourth Proportional to 8,693,269.80, 13,039,904.70 and 5,501,999.40

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Solution

The fourth proportional to 8,693,269.80, 13,039,904.70 and 5,501,999.40 is: 8,252,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693,269.80 : 13,039,904.70 = 5,501,999.40 : x
  2. Step 2: Convert to fraction form
    8,693,269.80/13,039,904.70 = 5,501,999.40/x
  3. Step 3: Cross multiply
    8,693,269.80x = 13,039,904.70 × 5,501,999.40
  4. Step 4: Simplify right side
    8,693,269.80x = 71,745,547,835,457.19
  5. Step 5: Solve for x
    x = 71,745,547,835,457.19/8,693,269.80
  6. Step 6: Final answer
    x = 8,252,999.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.