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Finding the Fourth Proportional to 84,803.76, 117,035.28 and 47,077.74

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Solution

The fourth proportional to 84,803.76, 117,035.28 and 47,077.74 is: 64,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,803.76 : 117,035.28 = 47,077.74 : x
  2. Step 2: Convert to fraction form
    84,803.76/117,035.28 = 47,077.74/x
  3. Step 3: Cross multiply
    84,803.76x = 117,035.28 × 47,077.74
  4. Step 4: Simplify right side
    84,803.76x = 5,509,756,482.67
  5. Step 5: Solve for x
    x = 5,509,756,482.67/84,803.76
  6. Step 6: Final answer
    x = 64,970.66

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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.