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Finding the Fourth Proportional to 70,547.61, 97,353.50 and 38,715.69

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Solution

The fourth proportional to 70,547.61, 97,353.50 and 38,715.69 is: 53,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,547.61 : 97,353.50 = 38,715.69 : x
  2. Step 2: Convert to fraction form
    70,547.61/97,353.50 = 38,715.69/x
  3. Step 3: Cross multiply
    70,547.61x = 97,353.50 × 38,715.69
  4. Step 4: Simplify right side
    70,547.61x = 3,769,107,926.42
  5. Step 5: Solve for x
    x = 3,769,107,926.42/70,547.61
  6. Step 6: Final answer
    x = 53,426.44

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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.