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Finding the Fourth Proportional to 70,417.70, 97,123.44 and 48,907.47

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Solution

The fourth proportional to 70,417.70, 97,123.44 and 48,907.47 is: 67,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417.70 : 97,123.44 = 48,907.47 : x
  2. Step 2: Convert to fraction form
    70,417.70/97,123.44 = 48,907.47/x
  3. Step 3: Cross multiply
    70,417.70x = 97,123.44 × 48,907.47
  4. Step 4: Simplify right side
    70,417.70x = 4,750,061,728.10
  5. Step 5: Solve for x
    x = 4,750,061,728.10/70,417.70
  6. Step 6: Final answer
    x = 67,455.51

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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.