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Finding the Fourth Proportional to 65,263.60, 97,895.40 and 40,222.45

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Solution

The fourth proportional to 65,263.60, 97,895.40 and 40,222.45 is: 60,333.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,263.60 : 97,895.40 = 40,222.45 : x
  2. Step 2: Convert to fraction form
    65,263.60/97,895.40 = 40,222.45/x
  3. Step 3: Cross multiply
    65,263.60x = 97,895.40 × 40,222.45
  4. Step 4: Simplify right side
    65,263.60x = 3,937,592,831.73
  5. Step 5: Solve for x
    x = 3,937,592,831.73/65,263.60
  6. Step 6: Final answer
    x = 60,333.68

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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.