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Finding the Fourth Proportional to 70,448.65, 97,223.66 and 38,617.63

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Solution

The fourth proportional to 70,448.65, 97,223.66 and 38,617.63 is: 53,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,448.65 : 97,223.66 = 38,617.63 : x
  2. Step 2: Convert to fraction form
    70,448.65/97,223.66 = 38,617.63/x
  3. Step 3: Cross multiply
    70,448.65x = 97,223.66 × 38,617.63
  4. Step 4: Simplify right side
    70,448.65x = 3,754,547,329.13
  5. Step 5: Solve for x
    x = 3,754,547,329.13/70,448.65
  6. Step 6: Final answer
    x = 53,294.81

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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.