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Finding the Fourth Proportional to 72,536.99, 100,076.51 and 47,075.24

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Solution

The fourth proportional to 72,536.99, 100,076.51 and 47,075.24 is: 64,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,536.99 : 100,076.51 = 47,075.24 : x
  2. Step 2: Convert to fraction form
    72,536.99/100,076.51 = 47,075.24/x
  3. Step 3: Cross multiply
    72,536.99x = 100,076.51 × 47,075.24
  4. Step 4: Simplify right side
    72,536.99x = 4,711,126,094.49
  5. Step 5: Solve for x
    x = 4,711,126,094.49/72,536.99
  6. Step 6: Final answer
    x = 64,947.92

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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.