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Finding the Fourth Proportional to 15,614.22, 21,547.08 and 8,902.01

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Solution

The fourth proportional to 15,614.22, 21,547.08 and 8,902.01 is: 12,284.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.22 : 21,547.08 = 8,902.01 : x
  2. Step 2: Convert to fraction form
    15,614.22/21,547.08 = 8,902.01/x
  3. Step 3: Cross multiply
    15,614.22x = 21,547.08 × 8,902.01
  4. Step 4: Simplify right side
    15,614.22x = 191,812,267.76
  5. Step 5: Solve for x
    x = 191,812,267.76/15,614.22
  6. Step 6: Final answer
    x = 12,284.46

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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.