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Finding the Fourth Proportional to 21,547.92, 32,302.32 and 7,693.68

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Solution

The fourth proportional to 21,547.92, 32,302.32 and 7,693.68 is: 11,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.92 : 32,302.32 = 7,693.68 : x
  2. Step 2: Convert to fraction form
    21,547.92/32,302.32 = 7,693.68/x
  3. Step 3: Cross multiply
    21,547.92x = 32,302.32 × 7,693.68
  4. Step 4: Simplify right side
    21,547.92x = 248,523,713.34
  5. Step 5: Solve for x
    x = 248,523,713.34/21,547.92
  6. Step 6: Final answer
    x = 11,533.54

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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.