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Finding the Fourth Proportional to 7,904.36, 10,909.09 and 4,547.11

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Solution

The fourth proportional to 7,904.36, 10,909.09 and 4,547.11 is: 6,275.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.36 : 10,909.09 = 4,547.11 : x
  2. Step 2: Convert to fraction form
    7,904.36/10,909.09 = 4,547.11/x
  3. Step 3: Cross multiply
    7,904.36x = 10,909.09 × 4,547.11
  4. Step 4: Simplify right side
    7,904.36x = 49,604,810.64
  5. Step 5: Solve for x
    x = 49,604,810.64/7,904.36
  6. Step 6: Final answer
    x = 6,275.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.